The Azure IoT C SDK initially used a branch named master as its primary branch. This was renamed to main on December 1, 2021.

Implications to tools and scripts referencing this repo

When a web request to an older link to this repo that contains master in it - for instance https://github.com/Azure/azure-iot-sdk-c/blob/**master**/doc/master_to_main_rename.md - GitHub will automatically redirect this to main.

GitHub will not redirect tools, scripts, command line requests, etc. that explicitly reference the master branch, however. These will instead fail accessing the deleted branch. You will need to change these to reference this repo's main branch.

Implications to local clones of this repo

If you cloned this repo after December 1, 2021, you can ignore the rest of this document.

Git clones after the default rename will use main and do the right thing.

If you cloned this repo before December 1, 2021, You need to make changes so that your local copy of the repo will use main instead of master.

You can just run a new git clone and delete your previous clone. The new clone will use main as its primary branch.
Or if you want to keep your existing copy of the repo, then you will need to run these commands
git branch -m master main

git fetch origin

git branch -u origin/main main

git remote set-head origin -a